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Question (11)

QN0023432

Which part of a rain gauge collects rainwater first?

(A) Measuring scale
(B) Measuring tube
(C) Collecting funnel
(D) Barometer tube

Correct Answer: C

Explanation:

Rainwater first enters the collecting funnel.

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Question (12)

QN0023433

Rainfall recorded over five days was 2 mm, 4 mm, 6 mm, 8 mm and 10 mm. What is the average rainfall?

(A) 5 mm
(B) 6 mm
(C) 7 mm
(D) 8 mm

Correct Answer: B

Explanation:

Average rainfall = (2 + 4 + 6 + 8 + 10) ÷ 5 = 6 mm.

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Question (13)

QN0023434

Atmospheric pressure is measured using a:

(A) Thermometer
(B) Hygrometer
(C) Barometer
(D) Rain gauge

Correct Answer: C

Explanation:

A barometer measures atmospheric pressure.

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Question (14)

QN0023435

The unit commonly used by barometers is:

(A) km/h
(B) °C
(C) %
(D) mb

Correct Answer: D

Explanation:

Atmospheric pressure is generally measured in millibars (mb).

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Question (15)

QN0023436

Normal atmospheric pressure at sea coast is around:

(A) 650 mb
(B) 850 mb
(C) 1013 mb
(D) 1200 mb

Correct Answer: C

Explanation:

Normal sea-level atmospheric pressure is about 1013 mb.

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Question (16)

QN0023437

A barometer reading of 990 mb generally indicates:

(A) High pressure system
(B) Depression or low-pressure system
(C) Dry mountain air
(D) Normal sea-level pressure

Correct Answer: B

Explanation:

Pressure below 1000 mb indicates a depression.

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Question (17)

QN0023438

A coastal city records 1013 mb pressure while a hill station records 913 mb. What is the difference?

(A) 90 mb
(B) 95 mb
(C) 100 mb
(D) 110 mb

Correct Answer: C

Explanation:

Difference = 1013 − 913 = 100 mb.

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Question (18)

QN0023439

Atmospheric pressure at a mountain peak is 700 mb. How much lower is it than normal sea-level pressure?

(A) 213 mb
(B) 303 mb
(C) 313 mb
(D) 403 mb

Correct Answer: C

Explanation:

1013 − 700 = 313 mb.

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Question (19)

QN0023440

Which instrument shows wind direction?

(A) Hygrometer
(B) Wind vane
(C) Rain gauge
(D) Thermometer

Correct Answer: B

Explanation:

A wind vane indicates wind direction.

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Question (20)

QN0023441

In a wind vane, which part is pushed by the wind?

(A) Pointer
(B) Shaft
(C) Tail
(D) Base

Correct Answer: C

Explanation:

The tail is pushed by the wind, causing the pointer to turn.

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Question (11)

Which part of a rain gauge collects rainwater first?

Explanation:

Link:

Question (12)

Rainfall recorded over five days was 2 mm, 4 mm, 6 mm, 8 mm and 10 mm. What is the average rainfall?

Explanation:

Link:

Question (13)

Atmospheric pressure is measured using a:

Explanation:

Link:

Question (14)

The unit commonly used by barometers is:

Explanation:

Link:

Question (15)

Normal atmospheric pressure at sea coast is around:

Explanation:

Link:

Question (16)

A barometer reading of 990 mb generally indicates:

Explanation:

Link:

Question (17)

A coastal city records 1013 mb pressure while a hill station records 913 mb. What is the difference?

Explanation:

Link:

Question (18)

Atmospheric pressure at a mountain peak is 700 mb. How much lower is it than normal sea-level pressure?

Explanation:

Link:

Question (19)

Which instrument shows wind direction?

Explanation:

Link:

Question (20)

In a wind vane, which part is pushed by the wind?

Explanation:

Link:

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